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II. JSP Application Development > 9. Error Handling and Debugging

Chapter 9. Error Handling and Debugging

When you develop any application that’s more than a trivial example, errors are inevitable. A JSP-based application is no exception. There are many types of errors you will deal with. Simple syntax errors in the JSP pages are almost a given during the development phase. And even after you have fixed all the syntax errors, you may still have to figure out why the application doesn’t work as you intended because of design mistakes. The application must also be designed to deal with problems that can occur when it’s deployed for production use. Users can enter invalid values and try to use the application in ways you never imagined. External systems, such as databases, can fail or become unavailable due to network problems.


  

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